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  1. P

    2009 Mercury Optimax Idle / Low RPM Issues

    Still looking for help, I pulled all 3x fuel injectors, cleaned them and installed them again still Chugging/ Kicking every 10-20 seconds. I'm thinking of taking off the oil reserve tank in the front and looking into the reeds. I also ran the boat on a separate Gas Can with new fuel just to rule...
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    2009 Mercury Optimax Idle / Low RPM Issues

    Another thing I forgot to mention was that when I'm finished with my high pressure test the air drops fairly quickly to 0psi while the fuel pressure stays about 10psi.
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    2009 Mercury Optimax Idle / Low RPM Issues

    Yeah I took a fuel sample from the VST port and it seemed to be okay without any water. Unfortunately I can't isolate any of the cylinders because the engine dies as soon as I do.
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    2009 Mercury Optimax Idle / Low RPM Issues

    Yeah that's what I was thinking, do you know the best way to test them without bringing it to a dealership? Can you physically see problems with them or are they usually only found while spraying? Thanks again!
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    2009 Mercury Optimax Idle / Low RPM Issues

    Do you mean like field maintenance manual on page 193 ? That's for installation of fuel injectors.
  6. P

    2009 Mercury Optimax Idle / Low RPM Issues

    Any Ideas ? I've got a bad kick / hunt every few seconds at idle / low rpms and sometimes it stalls but seems to work okay higher rpms. I've got about 110psi fuel pressure, 95psi air pressure. 25psi low fuel pressure. Compression tested same all 3 cylinders, coil pack gap tested at 10mm and each...
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